rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=555/1/0x4000000000000000 softirq=131487/131489 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P2968/1:b..l
(detected by 1, t=10502 jiffies, g=252201, q=56)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 26673 Comm: syz-executor.0 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:advance_sched+0xcc/0x9a0 net/sched/sch_taprio.c:717
Code: 89 e7 4c 8b 6b e8 e8 a3 55 e5 01 31 ff 89 c5 89 c6 e8 58 d4 18 fa 85 ed 0f 84 42 06 00 00 e8 2b d2 18 fa 48 8d 43 f0 48 89 c2 <48> 89 44 24 28 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02
RSP: 0018:ffffc90000007dd0 EFLAGS: 00000046
RAX: ffff888078257b30 RBX: ffff888078257b40 RCX: 0000000000000000
RDX: ffff888078257b30 RSI: ffffffff875ed895 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000003
R10: ffffffff875ed888 R11: 0000000000000000 R12: ffff888078257b00
R13: ffff8880ab03c200 R14: ffff8880b9c2a400 R15: ffffffff875ed7d0
FS: 0000555555fff400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffea8bec32c CR3: 0000000033faa000 CR4: 0000000000350ef0
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 d1 22 46 00 5d be 03 00 00 00 e9 56 1b 63 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 39 c5 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc900047af900 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff8880868dba00 RDI: 0000000000000003
RBP: ffff88807171ef00 R08: 0000000000000000 R09: 0000000000000004
R10: ffffffff83a32257 R11: 0000000000000010 R12: 0000000000000010
R13: 000000000000006d R14: dffffc0000000000 R15: 0000000000000001
tomoyo_domain_quota_is_ok+0x311/0x550 security/tomoyo/util.c:1094
tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_path_permission security/tomoyo/file.c:587 [inline]
tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573
tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838
security_inode_getattr+0xcf/0x140 security/security.c:1334
vfs_getattr fs/stat.c:157 [inline]
vfs_fstat+0x43/0xb0 fs/stat.c:182
__do_sys_newfstat+0x81/0x100 fs/stat.c:422
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4d2c92ab35
Code: bc ff ff ff 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 41 89 f8 89 f7 48 89 d6 41 83 f8 01 77 2a b8 05 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 c3 66 90 48 c7 c2 bc ff ff ff f7 d8 64 89
RSP: 002b:00007ffea8bec248 EFLAGS: 00000246 ORIG_RAX: 0000000000000005
RAX: ffffffffffffffda RBX: 0000000000000f0b RCX: 00007f4d2c92ab35
RDX: 00007ffea8bec250 RSI: 00007ffea8bec250 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000001 R09: 00007ffea8bed490
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffea8bec250
R13: 00007ffea8bed490 R14: 0000000000000007 R15: 00007ffea8bed4d0
task:systemd-udevd state:R running task stack:22872 pid: 2968 ppid: 1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6668
irqentry_exit+0x31/0x80 kernel/entry/common.c:425
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5605
Code: b3 a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90001cbfe20 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000397fc6 RCX: e9dea97a144a6d3b
RDX: 1ffff11002be688b RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8ff72a07
R10: fffffbfff1fee540 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8bb83b60 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:688 [inline]
__task_pid_nr_ns+0x3d/0x4b0 kernel/pid.c:497
task_tgid_vnr include/linux/sched.h:1586 [inline]
__do_sys_getpid+0x1a/0x20 kernel/sys.c:926
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd798838f17
RSP: 002b:00007ffcfece73f8 EFLAGS: 00000293 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 0000000000000b98 RCX: 00007fd798838f17
RDX: 0000000000000200 RSI: 00007ffcfece6f50 RDI: 0000556058ffd830
RBP: 0000556058ffd878 R08: 0000000000000001 R09: 0000000000000014
R10: 0000000000000064 R11: 0000000000000293 R12: 0000556057649812
R13: 0000556058ffd850 R14: 0000556058ffd830 R15: 0000000000000001
rcu: rcu_preempt kthread starved for 10502 jiffies! g252201 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28688 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 22658 Comm: syz-executor.4 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:481
print_other_cpu_stall kernel/rcu/tree_stall.h:586 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:729 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq+0x2125/0x2200 kernel/rcu/tree.c:2597
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xd/0x60 kernel/kcov.c:200
Code: 00 00 e9 56 1b 63 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 39 c5 8a 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 00 01 ff 00 74 0e
RSP: 0018:ffffc90003767c00 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b9c41d40 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff816c3540 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff816c3566 R11: 0000000000000000 R12: ffffed10173883a9
R13: 0000000000000000 R14: ffff8880b9c41d48 R15: 0000000000000001
rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
csd_lock_wait kernel/smp.c:440 [inline]
smp_call_function_many_cond+0x450/0xc20 kernel/smp.c:969
clock_was_set+0x599/0x790 kernel/time/hrtimer.c:974
do_settimeofday64 kernel/time/timekeeping.c:1327 [inline]
do_settimeofday64+0x3e2/0x5c0 kernel/time/timekeeping.c:1293
do_sys_settimeofday64 kernel/time/time.c:195 [inline]
do_sys_settimeofday64+0x1de/0x260 kernel/time/time.c:169
__do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline]
__x64_sys_clock_settime+0x1a1/0x280 kernel/time/posix-timers.c:1067
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd8ac925ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd8a9e9b188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007fd8aca38f60 RCX: 00007fd8ac925ae9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007fd8ac97ff6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc2e392bcf R14: 00007fd8a9e9b300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 89 e7 mov %esp,%edi
2: 4c 8b 6b e8 mov -0x18(%rbx),%r13
6: e8 a3 55 e5 01 callq 0x1e555ae
b: 31 ff xor %edi,%edi
d: 89 c5 mov %eax,%ebp
f: 89 c6 mov %eax,%esi
11: e8 58 d4 18 fa callq 0xfa18d46e
16: 85 ed test %ebp,%ebp
18: 0f 84 42 06 00 00 je 0x660
1e: e8 2b d2 18 fa callq 0xfa18d24e
23: 48 8d 43 f0 lea -0x10(%rbx),%rax
27: 48 89 c2 mov %rax,%rdx
* 2a: 48 89 44 24 28 mov %rax,0x28(%rsp) <-- trapping instruction
2f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
36: fc ff df
39: 48 c1 ea 03 shr $0x3,%rdx
3d: 80 .byte 0x80
3e: 3c 02 cmp $0x2,%al